package com.atguigu.exer;

public class ArrayExer1 {

    public static void main(String[] args) {
        int[][] arr = new int[][]{{3, 5, 8}, {12, 9}, {7, 0, 6, 4}};

        int sum = 0;//记录总和
        for (int i = 0; i < arr.length; i++) {
            for (int j = 0; j < arr[i].length; j++) {
                sum += arr[i][j];
            }
        }

        System.out.println("总和为：" + sum);
    }

}
